scholarly journals Evaluation of selected lipid methods for normalizing pollutant bioaccumulation

1991 ◽  
Vol 10 (11) ◽  
pp. 1431-1436 ◽  
Author(s):  
Robert C. Randall ◽  
Henry Lee ◽  
Robert J. Ozretich ◽  
James L. Lake ◽  
Richard J. Pruell
Keyword(s):  
Pollutant Bioaccumulation

scholarly journals Lipids in Marine Ecosystems

2013 ◽  
Vol 2013 ◽  
pp. 1-16 ◽  
Author(s):  
Christopher C. Parrish
Keyword(s):  
Fatty Acids ◽  
Organic Contaminants ◽  
Essential Fatty Acids ◽  
Marine Ecosystems ◽  
Sterol Composition ◽  
Trophic Levels ◽  
Data Sets ◽  
Objective Interpretation ◽  
Marine Lipids ◽  
Pollutant Bioaccumulation

Lipids provide the densest form of energy in marine ecosystems. They are also a solvent and absorption carrier for organic contaminants and thus can be drivers of pollutant bioaccumulation. Among the lipids, certain essential fatty acids and sterols are considered to be important determinants of ecosystem health and stability. Fatty acids and sterols are also susceptible to oxidative damage leading to cytotoxicity and a decrease in membrane fluidity. The physical characteristics of biological membranes can be defended from the influence of changing temperature, pressure, or lipid peroxidation by altering the fatty acid and sterol composition of the lipid bilayer. Marine lipids are also a valuable tool to measure inputs, cycling, and loss of materials. Their heterogeneous nature makes them versatile biomarkers that are widely used in marine trophic studies, often with the help of multivariate statistics, to delineate carbon cycling and transfer of materials. Principal components analysis has a strong following as it permits data reduction and an objective interpretation of results, but several more sophisticated multivariate analyses which are more quantitative are emerging too. Integrating stable isotope and lipid data can facilitate the interpretation of both data sets and can provide a quantitative estimate of transfer across trophic levels.

Basin‐Specific Pollutant Bioaccumulation Patterns Define Lake Huron Forage Fish

2020 ◽  
Vol 39 (9) ◽  
pp. 1712-1723
Author(s):  
Gordon Paterson ◽  
Lauren L. Di Pierdomenico ◽  
G. Douglas Haffner
Keyword(s):  
Lake Huron ◽  
Forage Fish ◽  
Pollutant Bioaccumulation

Influence of Lipid Pool Size on Bioaccumulation of the Insecticide Chlordane by Northern Redhorse Suckers (Moxostoma macrolepidotum)

1977 ◽  
Vol 34 (1) ◽  
pp. 89-97 ◽  
Author(s):  
J. R. Roberts ◽  
A. S. W. deFrietas ◽  
M. A. J. Gidney
Keyword(s):  
Half Life ◽  
Assimilation Efficiency ◽  
Direct Determination ◽  
Fish Tissue ◽  
Pool Size ◽  
Lipid Pool ◽  
Net Assimilation ◽  
Pollutant Bioaccumulation ◽  
Cis And Trans

An effect of the lipid pool size on the accumulation and clearance of cis- and trans-chlordane by northern redhorse suckers (Moxostoma macrolepidotum) has been demonstrated. A technique was developed using 203Hg-labeled methylmercury as a tracer, which permits the direct determination of the assimilation efficiency from food and the biological half-life of chlorinated hydrocarbons in terms of individual fish. Tissue retention of the insecticide chlordane in fish was directly proportional to the adiposity of the fish. For a fish containing 2% lipid, the half-life of the cis-isomer was 60 days and for the trans-isomer, 33 days. The net assimilation efficiency from food to fish tissue was also influenced by adiposity. These results on uptake and clearance, when used in a simple model for pollutant bioaccumulation, indicate that the steady state concentration of chlordane in fish will not exceed the concentration of chlordane in the diet unless the adiposity of the fish is high.

scholarly journals Pollutant bioaccumulation in anchovy (Engraulis encrasicolus) tissue, fish species of commercial interest at the Romanian Black Sea coast

2017 ◽  
Vol 28 (1) ◽  
pp. 11-17 ◽  
Author(s):  
Mădălina Galaţchi ◽  
Andra Oros ◽  
Valentina Coatu ◽  
Mioara Costache ◽  
Dragomir Coprean ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Polychlorinated Biphenyls ◽  
Organochlorine Pesticides ◽  
Black Sea ◽  
Dry Weight ◽  
Engraulis Encrasicolus ◽  
Commercial Interest ◽  
Black Sea Coast ◽  
Pollutant Bioaccumulation ◽  
Sea Coast

AbstractThe pollution of the marine ecosystem is a world-wide problem. Heavy metals and organochlorine compounds are among the most harmful elemental pollutants and are of particular concern because of their toxicity to humans. Anchovy (Engraulis encrasicolus, Linnaeus 1758), small pelagic fish with a key ecological role in the marine food web, is an important link connecting the lower and upper trophic levels, being also a valuable species for human consumption. Thus, anchovy samples were collected from different stations along the Romanian Black Sea coast and the analyzed contaminants were organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs) and heavy metals (Cd, Pb, Ni, Cu and Cr) in muscle tissue. Cd and Pb are the heavy metals that exceeded the allowed levels under the EU legislation (0.3 μg/g), Cd recorded values within the range 0.29-0.51 μg/g (average 0.36 ± 0.09 μg/g) and Pb recorded values within the interval 0.29-1.62 μg/g (average 0.75 ± 0.57 μg/g). Regarding organochlorine pesticides, the highest level was recorded by p,p′-DDE (6.76±1.21 ng/g/dry weight), followed by p,p′-DDD (3.88±0.97 ng/g/dry weight). Among PCB’s, the highest level was recorded by PCB 28 (5.19±1.29 ng/g/dry weight). The results of this study revealed that heavy metals, pesticides and polychlorinated biphenyls values identified in anchovy tissue, species of commercial interest from the Black Sea, are not threatening to human consumers.

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